The LK112SM33TR from STMicroelectronics is a high-performance, low-dropout voltage regulator designed to deliver a stable and precise 3.3V output. This component is particularly well-suited for battery-powered applications and portable devices due to its low power consumption and small footprint.

Key Features

• Output Voltage: The device provides a fixed output voltage of 3.3V, which is ideal for powering 3.3V logic devices and microcontrollers.
• Low Dropout: The low dropout voltage allows the regulator to operate efficiently even when the input voltage is very close to the output voltage, thereby minimizing power loss and improving battery life.
• High Accuracy: The output voltage is maintained with high accuracy, ensuring reliable operation of sensitive electronic components.
• Current Limiting: Built-in current limiting protects the device and the load from damage due to excessive current draw.
• Thermal Protection: The regulator includes thermal shutdown protection that prevents overheating and potential damage to the IC.
• Low Quiescent Current: The device has a very low quiescent current, which is beneficial for battery-powered applications where power efficiency is critical.
• Package: The LK112SM33TR is available in a small surface-mount package, making it easy to integrate into compact PCB designs.

Applications

The LK112SM33TR is versatile and can be used in a wide range of applications, including:

• Portable devices such as GPS receivers, handheld gaming devices, and personal media players
• Battery-powered equipment where power efficiency is paramount
• Microcontroller power supply
• Point-of-load conversions from higher voltages down to 3.3V

Conclusion

The LK112SM33TR from STMicroelectronics is a reliable and efficient solution for applications requiring a regulated 3.3V supply. Its low dropout voltage, high accuracy, and power-saving features make it an excellent choice for designers looking to optimize their power management systems. With its compact package and robust protection features, this voltage regulator ensures performance and durability in a variety of electronic devices.